freebsd-skq/lib/libgcc_eh/Makefile.inc
ngie 777d26ce52 Standardize -std=c++* as CXXSTD`
CXXSTD was added as the C++ analogue to CSTD.

CXXSTD defaults to `-std=c++11` with supporting compilers; `-std=gnu++98`,
otherwise for older versions of g++.

This change standardizes the CXXSTD variable, originally added to
googletest.test.inc.mk as part of r345203.

As part of this effort, convert all `CXXFLAGS+= -std=*` calls to use `CXXSTD`.

Notes:

This value is not sanity checked in bsd.sys.mk, however, given the two
most used C++ compilers on FreeBSD (clang++ and g++) support both modes, it is
likely to work with both toolchains. This method will be refined in the future
to support more variants of C++, as not all versions of clang++ and g++ (for
instance) support C++14, C++17, etc.

Any manual appending of `-std=*` to `CXXFLAGS` should be replaced with CXXSTD.
Example:

Before this commit:
```
CXXFLAGS+=	-std=c++14
```

After this commit:
```
CXXSTD=	c++14
```

Reviewed by:	asomers
Approved by:	emaste (mentor)
MFC after:	1 month
MFC with:	r345203, r345704, r345705
Relnotes:	yes
Tested with:	make tinderbox
Differential Revision:	https://reviews.freebsd.org/D19732
2019-03-29 18:45:27 +00:00

38 lines
1.1 KiB
Makefile

# $FreeBSD$
COMPILERRTDIR= ${SRCTOP}/contrib/compiler-rt
UNWINDINCDIR= ${SRCTOP}/contrib/libunwind/include
UNWINDSRCDIR= ${SRCTOP}/contrib/libunwind/src
STATIC_CFLAGS+=${PICFLAG} -fvisibility=hidden -DVISIBILITY_HIDDEN
.PATH: ${COMPILERRTDIR}/lib/builtins
.PATH: ${UNWINDSRCDIR}
SRCS_EXC+= gcc_personality_v0.c
SRCS_EXC+= int_util.c
SRCS_EXC+= Unwind-EHABI.cpp
SRCS_EXC+= Unwind-sjlj.c
SRCS_EXC+= UnwindLevel1-gcc-ext.c
SRCS_EXC+= UnwindLevel1.c
SRCS_EXC+= UnwindRegistersRestore.S
SRCS_EXC+= UnwindRegistersSave.S
SRCS_EXC+= libunwind.cpp
SRCS+= ${SRCS_EXC}
.for file in ${SRCS_EXC:M*.c}
CFLAGS.${file}+= -fno-exceptions -funwind-tables
.endfor
.for file in ${SRCS_EXC:M*.cpp}
CXXFLAGS.${file}+= -fno-exceptions -funwind-tables
.endfor
CFLAGS+= -I${UNWINDINCDIR} -I${.CURDIR} -D_LIBUNWIND_IS_NATIVE_ONLY
CXXFLAGS+= -fno-rtti
CXXSTD= c++11
STATIC_CXXFLAGS+= -fvisibility=hidden -fPIC
# Probably need to just move this earlier or use CXXFLAGS
.if ${MK_DIRDEPS_BUILD} == "yes"
# Avoid dependency on lib/libc++
CFLAGS+= -isystem ${SRCTOP}/contrib/libc++/include -nostdinc++
.endif